69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
#include "utils.h"
|
|
|
|
#include <flutter_windows.h>
|
|
#include <io.h>
|
|
#include <stdio.h>
|
|
#include <windows.h>
|
|
|
|
#include <iostream>
|
|
|
|
void CreateAndAttachConsole() {
|
|
if (::AllocConsole()) {
|
|
FILE *unused;
|
|
if (freopen_s(&unused, "CONOUT$", "w", stdout)) {
|
|
_dup2(_fileno(stdout), 1);
|
|
}
|
|
if (freopen_s(&unused, "CONOUT$", "w", stderr)) {
|
|
_dup2(_fileno(stdout), 2);
|
|
}
|
|
std::ios::sync_with_stdio();
|
|
FlutterDesktopResyncOutputStreams();
|
|
}
|
|
}
|
|
|
|
std::vector<std::string> GetCommandLineArguments() {
|
|
// Convert the UTF-16 command line arguments to UTF-8 for the Engine to use.
|
|
int argc;
|
|
wchar_t** argv = ::CommandLineToArgvW(::GetCommandLineW(), &argc);
|
|
if (argv == nullptr) {
|
|
return std::vector<std::string>();
|
|
}
|
|
|
|
std::vector<std::string> command_line_arguments;
|
|
|
|
// Skip the first argument as it's the binary name.
|
|
for (int i = 1; i < argc; i++) {
|
|
command_line_arguments.push_back(Utf8FromUtf16(argv[i]));
|
|
}
|
|
|
|
::LocalFree(argv);
|
|
|
|
return command_line_arguments;
|
|
}
|
|
|
|
std::string Utf8FromUtf16(const wchar_t* utf16_string) {
|
|
if (utf16_string == nullptr) {
|
|
return std::string();
|
|
}
|
|
// First, find the length of the string with a safe upper bound (CWE-126).
|
|
// UNICODE_STRING_MAX_CHARS (32767) is the maximum length of a UNICODE_STRING.
|
|
int input_length = static_cast<int>(wcsnlen(utf16_string, UNICODE_STRING_MAX_CHARS));
|
|
// Now use that bounded length to determine the required buffer size.
|
|
// When an explicit length is passed, WideCharToMultiByte does not include
|
|
// the null terminator in its returned size.
|
|
int target_length = ::WideCharToMultiByte(
|
|
CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
|
|
input_length, nullptr, 0, nullptr, nullptr);
|
|
std::string utf8_string;
|
|
if (target_length == 0 || static_cast<size_t>(target_length) > utf8_string.max_size()) {
|
|
return utf8_string;
|
|
}
|
|
utf8_string.resize(target_length);
|
|
int converted_length = ::WideCharToMultiByte(
|
|
CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
|
|
input_length, utf8_string.data(), target_length, nullptr, nullptr);
|
|
if (converted_length == 0) {
|
|
return std::string();
|
|
}
|
|
return utf8_string;
|
|
}
|